Observation of hydrogen induced intermediate borides in PrFeB based alloys by Mössbauer effect spectroscopy

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Abstract

In the present work, a quantitative analysis of the phase compositions by Mössbauer effect spectroscopy of solid and conventional hydrogen disproportionated Pr13.7Fe80.3B6.0and Pr13.7Fe63.5Co16.7Zr0.1B6.0alloys was carried out. Significant amounts of intermediate borides t-Fe3B and Pr(Fe,Co)12B6were detected after solid hydrogen disproportionation treatment in Pr13.7Fe80.3B6.0and Pr13.7Fe63.5Co16.7Zr0.1B6.0alloys, respectively. After conventional hydrogenation-disproportionation-desorption-recombination treatment these phases were not detected and in no case residual Pr2Fe14B-phase was found. It was observed that the amount of intermediate borides after disproportionation can be correlated with the degree of texture after recombination at various temperatures. © 2002 Elsevier Science B.V. All rights reserved.

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Saccone, F. D., Torres, C. E. R., Sánchez, F. H., & Gutfleisch, O. (2002). Observation of hydrogen induced intermediate borides in PrFeB based alloys by Mössbauer effect spectroscopy. Physica B: Condensed Matter, 320(1–4), 312–315. https://doi.org/10.1016/S0921-4526(02)00724-X

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